Digital input module

Products and reference designs

Digital input module

Block diagram

Overview

Our integrated circuits and reference designs enable you to build a digital input module, enabling isolated power and data transmission, diagnostics and debounce filters.

Design requirements

Digital input modules often require:

  • Highly efficient isolated power supply.
  • Advanced protection and diagnostics.
  • Precision signal chain for input filtering.

Extend the capabilities of this application

Block diagram

Find products and reference designs for your system.

Digital Input Module IEC61131-2

5V / 24V Backplane 5V / 24VBackplane ... ... Signal Isolation Signal Isolation Data Isolation w/ IEC61131-2 Type 1..3 input current limit Data Isolation w/IEC61131-2Type 1..3 input current limit Signal Input/Output Protection Signal Input/Output Protection Protection Protection Protection Protection Digital Processing Digital Processing MCU / MPU MCU /MPU BUS ASIC / FPGA BUS ASIC /FPGA Input Power Protection (Backplane) Input Power Protection (Backplane) E-Fuse & Protection E-Fuse & Protection Non-Isolated DC/DC Power Supply (Backplane) Non-Isolated DC/DC Power Supply (Backplane) DC/DC DC/DC LDO LDO Supervisor Sequencer Supervisor Sequencer Wired Interface Wired Interface Ethernet Ethernet LVDS / RS-485 LVDS / RS-485 Output User Interface Output User Interface LED Driver LED Driver Wireless Interface Wireless Interface NFC NFC

Technical documentation

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Type Title Date
Application brief How To Simplify Isolated 24V PLC Digital Input Module Designs (Rev. C) PDF | HTML 22 Nov 2024
Application brief Protecting I/O modules from surge events 08 May 2022

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